40216392 has 32 divisors (see below), whose sum is σ = 111712800. Its totient is φ = 13405392.

The previous prime is 40216381. The next prime is 40216399. The reversal of 40216392 is 29361204.

40216392 is a `hidden beast` number, since 4 + 0 + 21 + 639 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40216399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92878 + ... + 93309.

It is an arithmetic number, because the mean of its divisors is an integer number (3491025).

Almost surely, 2^40216392 is an apocalyptic number.

It is an amenable number.

40216392 is an abundant number, since it is smaller than the sum of its proper divisors (71496408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40216392 is a wasteful number, since it uses less digits than its factorization.

40216392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186202 (or 186192 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 40216392 is about 6341.6395356406. The cubic root of 40216392 is about 342.6107891008.

Adding to 40216392 its reverse (29361204), we get a palindrome (69577596).

The spelling of 40216392 in words is "forty million, two hundred sixteen thousand, three hundred ninety-two".